MY ERROR MESSAGE:
~/workspace/pset3/fifteen/ $ make fifteen
clang -ggdb3 -O0 -std=c11 -Wall -Werror -o fifteen fifteen.c -lcs50 -lm
fifteen.c:221:1: error: function definition is not allowed here
{
^
fifteen.c:260:1: error: function definition is not allowed here
{
^
fifteen.c:281:2: error: expected '}'
}
^
fifteen.c:195:1: note: to match this '{'
{
^
3 errors generated.
make: *** [fifteen] Error 1
MY CODE:
#define _XOPEN_SOURCE 500
#include <cs50.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
// constants
#define DIM_MIN 3
#define DIM_MAX 9
// board
int board[DIM_MAX][DIM_MAX];
// dimensions
int d;
// prototypes
void clear(void);
void greet(void);
void init(void);
void draw(void);
bool move(int tile);
bool won(void);
int main(int argc, string argv[])
{
// ensure proper usage
if (argc != 2)
{
printf("Usage: fifteen d\n");
return 1;
}
// ensure valid dimensions
d = atoi(argv[1]);
if (d < DIM_MIN || d > DIM_MAX)
{
printf("Board must be between %i x %i and %i x %i, inclusive.\n",
DIM_MIN, DIM_MIN, DIM_MAX, DIM_MAX);
return 2;
}
// open log
FILE* file = fopen("log.txt", "w");
if (file == NULL)
{
return 3;
}
// greet user with instructions
greet();
// initialize the board
init();
// accept moves until game is won
while (true)
{
// clear the screen
clear();
// draw the current state of the board
draw();
// log the current state of the board (for testing)
for (int i = 0; i < d; i++)
{
for (int j = 0; j < d; j++)
{
fprintf(file, "%i", board[i][j]);
if (j < d - 1)
{
fprintf(file, "|");
}
}
fprintf(file, "\n");
}
fflush(file);
// check for win
if (won())
{
printf("ftw!\n");
break;
}
// prompt for move
printf("Tile to move: ");
int tile = GetInt();
// quit if user inputs 0 (for testing)
if (tile == 0)
{
break;
}
// log move (for testing)
fprintf(file, "%i\n", tile);
fflush(file);
// move if possible, else report illegality
if (!move(tile))
{
printf("\nIllegal move.\n");
usleep(2000000);
}
// sleep thread for animation's sake
usleep(2000000);
}
// close log
fclose(file);
// success
return 0;
}
/**
* Clears screen using ANSI escape sequences.
*/
void clear(void)
{
printf("\033[2J");
printf("\033[%d;%dH", 0, 0);
}
/**
* Greets player.
*/
void greet(void)
{
clear();
printf("WELCOME TO GAME OF FIFTEEN\n");
usleep(2000000);
}
/**
* Initializes the game's board with tiles numbered 1 through d*d - 1
* (i.e., fills 2D array with values but does not actually print them).
*/
void init(void)
{
if (d % 2 != 0)
{
for (int i = 0; i < d; i++)
{
for (int j = 0; j < d; j++)
{
board[i][j] = d^2 - 1 - j - d*i;
}
}
board[d - 1][d - 1] = 0;
board[d - 1][d - 2] = 2;
board[d - 1][d - 3] = 1;
}
else;
{
for (int i = 0; i < d; i++)
{
for (int j = 0; j < d; j++)
{
board[i][j] = d^2 - 1 - j - d*i;
}
}
board[d - 1][d - 1] = 0;
}
}
/**
* Prints the board in its current state.
*/
void draw(void)
{
for (int i = 0; i < d; i++)
{
for (int j = 0; j < d; j++)
{
if (board[i][j] <= 10)
{
printf(" ");
if (board[i][j] % d == 0 && board[i][j] != 0)
{
printf("%i \n", board[i][j]);
}
else;
{
printf("%i ", board[i][j]);
}
}
}
}
/**
* If tile borders empty space, moves tile and returns true, else
* returns false.
*/
bool move(int tile)
{
int zeroi = d - 1;
int zeroj = d - 1;
for (int i = 0, i < d, i++)
{
for(int j = 0, j < d, j++)
{
if (board[i][j] == tile)
{
int tilei = i;
int tilej = j;
if ((abs(tilei - zeroi) < 2)^(abs(tilej - zeroj) < 2))
{
board[zeroi][zeroj] = tile;
board[tilei][tilej] = 0;
draw();
return true;
break;
}
else;
{
return false;
break;
}
}
else;
{
printf("Tile is not found");
return false;
}
}
}
return false;
}
bool won(void)
{
int count = 0;
for (int i = 0; i < d; i++)
{
for(int j = 0; j < d; j++)
{
if (board[i][j] == j + i*d)
{
count = count + 1;
}
}
if (count == d*d)
{
return true;
}
else;
{
return false;
}
}
}
